Новичок
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Сообщений: 8
Регистрация: 6.7.2012
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Всем доброго времени суток! Начал немного программировать графику на DirectX по книге "Горнакова Уроки программирования на DirectX" так вот нарисовал куб, заставил его вращяться как в книге но когда начал использовать Z буфер куб отрисовывается паршиво некоторые грани не видно если убрать Z буфер то всё нормально. В чем может быть проблемма? Помогите разобраться пожалуйста? вот код программы | Код |
#include <Windows.h>
#include <tchar.h>
#include <d3d9.h>
#include <d3dx9.h>
#include <MMSystem.h>
#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")
#pragma comment(lib, "winmm.lib")
#include "resource.h"
#define SAFE_RELEASE(p) {\
if (p != NULL)\
{\
p->Release();\
p = NULL;\
}\
}
TCHAR szWindowClass[] = _T("Direct3DApplicationClass");
TCHAR szWindowTitle[] = _T("Direct 3D Application");
IDirect3D9 *g_pDirect = NULL;
IDirect3DDevice9 *g_pDevice = NULL;
IDirect3DVertexBuffer9 *g_pVertex = NULL;
IDirect3DIndexBuffer9 *g_pIndex = NULL;
struct CUSTOMVERTEX
{
FLOAT x, y, z;
DWORD color;
};
#define FVF_CUSTOMVERTEX (D3DFVF_XYZ | D3DFVF_DIFFUSE)
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE, LPTSTR, int nCmdShow)
{
WNDCLASS wc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MAIN));
wc.hInstance = hInstance;
wc.lpfnWndProc = WndProc;
wc.lpszClassName = szWindowClass;
wc.lpszMenuName = NULL;
wc.style = CS_DBLCLKS | CS_OWNDC | CS_VREDRAW | CS_HREDRAW;
if (!RegisterClass(&wc))
{
return 0;
}
HWND hWnd = CreateWindow(szWindowClass, szWindowTitle, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, HWND_DESKTOP, NULL, hInstance, NULL);
if (!hWnd)
{
return 0;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
g_pDirect = Direct3DCreate9(D3D_SDK_VERSION);
if (g_pDirect == NULL)
{
return 0;
}
D3DDISPLAYMODE dMode;
HRESULT hr = g_pDirect->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &dMode);
if (FAILED(hr))
{
return 0;
}
D3DPRESENT_PARAMETERS pParameters;
ZeroMemory(&pParameters, sizeof(pParameters));
pParameters.AutoDepthStencilFormat = D3DFMT_D16;
pParameters.BackBufferFormat = dMode.Format;
pParameters.EnableAutoDepthStencil = TRUE;
pParameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
pParameters.Windowed = TRUE;
hr = g_pDirect->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING, &pParameters, &g_pDevice);
if (FAILED(hr))
{
return 0;
}
g_pDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CW);
g_pDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
g_pDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE);
CUSTOMVERTEX Vertex[] =
{
{1.0f, -1.0f, -1.0f, 0x00000fff},
{-1.0f, -1.0f, -1.0f, 0x00000fff},
{-1.0f, 1.0f, -1.0f, 0x00000fff},
{1.0f, 1.0f, -1.0f, 0x00000fff},
{-1.0f, -1.0f, 1.0f, 0x00000fff},
{-1.0f, -1.0f, -1.0f, 0x00000fff},
{-1.0f, 1.0f, -1.0f, 0x00000fff},
{-1.0f, 1.0f, 1.0f, 0x00000fff},
{1.0f, -1.0f, 1.0f, 0x00000fff},
{-1.0f, -1.0f, 1.0f, 0x00000fff},
{-1.0f, 1.0f, 1.0f, 0x00000fff},
{1.0f, 1.0f, 1.0f, 0x00000fff},
{1.0f, -1.0f, -1.0f, 0x00000fff},
{1.0f, -1.0f, 1.0f, 0x00000fff},
{1.0f, 1.0f, 1.0f, 0x00000fff},
{1.0f, 1.0f, -1.0f, 0x00000fff},
{1.0f, 1.0f, 1.0f, 0x00000fff},
{-1.0f, 1.0f, 1.0f, 0x00000fff},
{-1.0f, 1.0f, -1.0f, 0x00000fff},
{1.0f, 1.0f, -1.0f, 0x00000fff},
{1.0f, -1.0f, 1.0f, 0x00000fff},
{-1.0f, -1.0f, 1.0f, 0x00000fff},
{-1.0f, -1.0f, -1.0f, 0x00000fff},
{1.0f, -1.0f, -1.0f, 0x00000fff}
};
hr = g_pDevice->CreateVertexBuffer(sizeof(Vertex), 0, FVF_CUSTOMVERTEX,
D3DPOOL_DEFAULT, &g_pVertex, NULL);
if (FAILED(hr))
{
return 0;
}
void *pVB;
hr = g_pVertex->Lock(0, 0, (void**)&pVB, 0);
if (FAILED(hr))
{
return 0;
}
CopyMemory(pVB, Vertex, sizeof(Vertex));
hr = g_pVertex->Unlock();
if (FAILED(hr))
{
return 0;
}
unsigned short Index[] =
{
0, 1, 2, 2, 3, 0,
4, 5, 6, 6, 7, 4,
8, 9, 10, 10, 11, 8,
12, 13, 14, 14, 15, 12,
16, 17, 18, 18, 19, 16,
20, 21, 22, 22, 23, 20
};
hr = g_pDevice->CreateIndexBuffer(sizeof(Index), 0, D3DFMT_INDEX16,
D3DPOOL_DEFAULT, &g_pIndex, NULL);
if (FAILED(hr))
{
return 0;
}
void *pIB;
hr = g_pIndex->Lock(0, 0, (void**)&pIB, 0);
if (FAILED(hr))
{
return 0;
}
CopyMemory(pIB, Index, sizeof(Index));
hr = g_pIndex->Unlock();
if (FAILED(hr))
{
return 0;
}
MSG msg;
ZeroMemory(&msg, sizeof(msg));
while (msg.message != WM_QUIT)
{
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
g_pDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
g_pDevice->BeginScene();
D3DXMATRIX mWorld, mWorldX, mWorldY, mWorldZ;
UINT uTime = timeGetTime() % 5000;
FLOAT fAngle = uTime * (2.0f * D3DX_PI) / 5000.0f;
D3DXMatrixRotationX(&mWorldX, fAngle);
D3DXMatrixRotationY(&mWorldY, fAngle);
D3DXMatrixMultiply(&mWorld, &mWorldX, &mWorldY);
g_pDevice->SetTransform(D3DTS_WORLD, &mWorld);
D3DXMATRIX mView;
D3DXMatrixLookAtLH(&mView, &D3DXVECTOR3(0.0f, 0.0f, -8.0f),
&D3DXVECTOR3(0.0f, 0.0f, 0.0f), &D3DXVECTOR3(0.0f, 1.0f, 0.0f));
g_pDevice->SetTransform(D3DTS_VIEW, &mView);
D3DXMATRIX mProjection;
D3DXMatrixPerspectiveFovLH(&mProjection, D3DX_PI / 4, 1.0f, 1.0f, 100.0f);
g_pDevice->SetTransform(D3DTS_PROJECTION, &mProjection);
g_pDevice->SetStreamSource(0, g_pVertex, 0, sizeof(CUSTOMVERTEX));
g_pDevice->SetFVF(FVF_CUSTOMVERTEX);
g_pDevice->SetIndices(g_pIndex);
g_pDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, ARRAYSIZE(Index), 0, 12);
g_pDevice->EndScene();
g_pDevice->Present(NULL, NULL, NULL, NULL);
}
}
SAFE_RELEASE(g_pIndex);
SAFE_RELEASE(g_pVertex);
SAFE_RELEASE(g_pDevice);
SAFE_RELEASE(g_pDirect);
return (int)msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_CREATE:
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
return 0;
}
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Проблема с Z буфером 
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